Santa Maria degli Angeli. This is the site where 10,000 Christians, led by St. Zeno, were martyred after they had been forced to build the Baths of Diocletian. Most of their relics are in the monastery of San Paolo alle Tre Fontane. The church has relics of Sts. Prosper (†466), Felix, Aurelia of Rome (†258 or 304), Eulalia (†304). The church was incorporated into the ruins of the Baths by Michelangelo.